ATPL Systems

50問 • 1年前

Will Erwin

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問題一覧

a function of the pressure relief valve in the transport aircraft hydraulic system is -

to prevent hydraulic seals blowing out

The function of the rear turbine support struts in the exhaust system of a turbojet engine is ?

to straighten the airflow in the jet pipe

in a gas turbine engine the start bleed valve is open at idle RPM. The RPM is then increased to maximum with the bleed valve still open. Regarding this situation-

The EGT will be higher than normal with a reduced thrust output

the nozzle guide vanes in the gas turbine engine are located ?

at the turbine inlet

Regarding the gas flow in a combustion section of the gas turbine engine

pressure is constant and temperature increases

concerning the characteristics of airflow behind a normal (vertical) shockwave

pressure and temperature increase

the hot gas in a jet aircraft APU for bleed air supply is taken from

the compressor outlet

The effect of CoG position on the cruise speed of an aircraft for a given power setting in level flight is -

a rearward CoG results in a higher cruise speed

a constant supply of fluid from the reservoir in a jet aircraft hydraulic system is ensured by -

pressurising the reservoir with bleed air

on a turbojet powered aircraft the front EPR probes are blocked…as the pilot advances thrust levers to take off EPR, the EPR gauge will ?

over read and the thrust will be less than takeoff thrust

as an aircraft altitude increases the spiral stability will -

increase

in a gas turbine powered aircraft, less thrust is available for takeoff with ?

high density altitude

in a haas turbine , engine thrust is produced

by the force required to accelerate the mass of air through the engine

in passing through the turbine section of a gas turbine , the airflow -

temperature and pressure decrease

the maximum gas temperature in a gas turbine engine occurs ?

in the combustion chamber primary zone

the outpost of a divergent shaped inlet duct on a turbofan engine is to

increase static pressure at the engine inlet

The greatest reduction in takeoff distance of a gas turbine powered aircraft would occur with ?

low outside air temperature, high QNH, and low humidity

the by-pass ratio of a gas turbine engine is best described as ?

the ratio of bypass air to core air

the least significant tyre variable relating to hydroplaning speed is?

size

an advantage of Nickel Cadmium (NiCad) batteries compared to lead cause type batteries in a jet transport aircraft installation is?

faster recharge

the electrical connection of ground AC power to the electrical system of a jet transport aircraft may be prevent when?

the aircraft generators are powering the electrical system

if an aircraft generator constant speed drive is disconnected in flight, the correct method for reconnection is ?

mechanically, on the ground

when a generator field relay (gen field switch) is tripped in a jet aircraft electrical system -

the voltage regulator is disconnected from the excitation field

the initial source of field excitation current for a 3 phase alternator in a jet transport aircraft electrical system is ?

the permanent magnetic generator PMG

in a constant frequency generator electrical system, the voltage regulator function is ?

control the current of the main exciter

the main function of the reduction drive in a turbo-prop installation is?

to convert high engine RPM to the low RPM required by the propeller

regarding the operation of a hot battery bus in a jet aircraft electrical system -

a hot battery bus is powered whenever a charger battery is installed in the aircraft

an advantage of using AC in large aircraft electrical system is high voltage transmission. This permits -

low current levels

the means by which 115VAC electrical power is converted to 28VDC in a large electrical system is a?

TRU

regarding the influence of ram effeft on gas turbine engine thrust output

ram effect results in a total recovery of thrust as aircraft forward speed increases

in a gas turbine engine, combustion occurs at a constant

pressure

in a typical turbo prop installation, the function of the propeller brake is to

prevent the propeller from windmilling when feathered

a pressurised aircraft on climb reaches the maximum permitted differential pressure. If the aircraft continues to climb -

the differential pressure will remain constant

an advantage of constant frequency alternators is

they are capable of load sharing

the function of servo-tab in a flight control system is to

reduce control lower

the aileron lockout system displays an AILERON LOCKOUT message on ECIAS. This will result in?

poor aircraft manoeuvrability at low speed

Regarding the differences between kerosene and wind cut type aviation fuels

kerosene has a higher specific gravity than wide cut aviation fuel

an input to the auto throttle system of a jet aircraft flight management system is?

IAS

if a pilot selects maximum auto brakes for a landing than subsequently applies. rakes manually -

the auto brakes will disarm

when flying on a long range cruise schedule, as a jet aircraft gross weight reduces in cruise as fuel in consumer, the long range cruise Mach number will -

reduce at a reduced power setting

changes in aircraft gross weight and load factor resulting in a reduced manoeuvre ceiling are?

higher gross weight and increase g load

the secondary flight control which enhances lateral control is?

spoilers

spiral divergence is increased when ?

lateral stability is weak and directional stability is strong

vortex generators fitted to the horizontal stabiliser are used to -

reduce flow separation at high speeds

pneumatic actuating systems are not widely used because?

compressed air is difficult to control precisely

in a B767 aircraft with a FMS incorporating electronic flight instruments with two EADIs and two EHSIs, the number of symbol generators fitted is -

the statement which doesn’t describe a correct function of a line select key on a CDU of a FMC is ?

if the line next to a key is blank, the associated line select key function depends on the CDU page in use

various warnings and cautions are accounted to the pilot by aural and the illumination of the master warning or caution lights. concerning the operation of the master warning/causing system for system faults -

warnings and cautions can be cancelled by pressing the master warning/caution caption even if the associated fault still exists

the cabin pressurisation control system operates in two ranges , They Are?

the isobaric and differential ranges

autopilot systems require protection against malfunctions such as control runways. The item that is NOT an example of an autopilot protection is ?

cross coupled feedback

M#5 Section and Title v2

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M#5 Section and Title v2